Constant CMD_DISABLE_ORDER 

pub const CMD_DISABLE_ORDER: u16 = 4720; // 4_720u16

真实订单失效命令 ID。模拟路径由 APIServer 层拒绝；registry 仍显式列出 C++ NN_ProtoCmd_Trd_OrderOp_DisableOrder + SimTrdCmdOffset。